Title:
光通信装置及び波長切替方法
Document Type and Number:
Japanese Patent JP6936030
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To perform wavelength switching while reducing an impact on a communication service.SOLUTION: Each of wavelength modules 3-1 and 3-2 which use different wavelengths outputs a packet acquired from an optical signal from an ONU 5 to a concentration device 4, sets the packet received from the concentration device 4 as an optical signal, and transmits the packet to the ONU 5. A concentrator 42 of the concentration device 4 concentrates the packets from the wavelength modules 3-1 and 3-2 and transmits the packets to an upper NW 75, separates the packets from the upper NW 75 into the wavelength modules 3-1 and 3-2 and outputs the packet. A CPU 41 executes a function related to communication control between the ONU 5 and the upper NW 75. In addition, the CPU 41 receives an instruction related to wavelength switching from an external control device 8, which has a wavelength switching function to control and stop transmission/reception of a packet of a wavelength used by the wavelength module of a switching source, and perform transmission/reception of a packet of the wavelength used by the wavelength module of a switching destination, and executes a part of the wavelength switching function without receiving further instructions.SELECTED DRAWING: Figure 1
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Inventors:
Takuya Harada
Manabu Yoshino
Kani Junichi
Hirotaka Ushikawa
Noriyuki Ota
Kenichi Suzuki
Manabu Yoshino
Kani Junichi
Hirotaka Ushikawa
Noriyuki Ota
Kenichi Suzuki
Application Number:
JP2017064977A
Publication Date:
September 15, 2021
Filing Date:
March 29, 2017
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L12/44; H04B10/272
Domestic Patent References:
| JP2017041856A | ||||
| JP2007036926A |
Other References:
吉野 學 他,NG-PON2における高信頼化に関する検討,電子情報通信学会2017年総合大会講演論文集,日本,一般社団法人電子情報通信学会,2017年3月7日,Vol.通信2,No.B-8-53,P.226
NTTアクセスサービスシステム研究所,新アクセスシステムアーキテクチャ(FASA)ホワイトペーパーver2.0,新アクセスシステムアーキテクチャ(FASA)ホワイトペーパーver2.0,日本,NTT Corp.,2017年 2月28日,Ver.2.0,PP.1-39
NTTアクセスサービスシステム研究所,新アクセスシステムアーキテクチャ(FASA)ホワイトペーパーver2.0,新アクセスシステムアーキテクチャ(FASA)ホワイトペーパーver2.0,日本,NTT Corp.,2017年 2月28日,Ver.2.0,PP.1-39
Attorney, Agent or Firm:
Hitoshi Okikawa
Kengo Nagata
Kengo Nagata